Home / 19,623.35-27,078.81-11,125.64

Finding the Fourth Proportional to 19,623.35, 27,078.81 and 11,125.64

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Solution

The fourth proportional to 19,623.35, 27,078.81 and 11,125.64 is: 15,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.35 : 27,078.81 = 11,125.64 : x
  2. Step 2: Convert to fraction form
    19,623.35/27,078.81 = 11,125.64/x
  3. Step 3: Cross multiply
    19,623.35x = 27,078.81 × 11,125.64
  4. Step 4: Simplify right side
    19,623.35x = 301,269,091.69
  5. Step 5: Solve for x
    x = 301,269,091.69/19,623.35
  6. Step 6: Final answer
    x = 15,352.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.